I am 82 years old and I have noticed that I have more stamina and energy since starting the PK. Not only that, but a result I didn't expect, which is bowel regularity.
I have missed a couple of days taking PK, but it hasn't seemed to nullify the overall results. Maybe it will help my memory, too, after a longer period of use.
I will continue this regimen because I truly like the results. I highly recommend it!
Bottom Line: Yes, I would recommend this to a friend